Gauge for punching machines



I... W. PAXTON GAUGE FOR PUNCHING MACHINES 2 sheets-sheet 1 Filed Sept. 14, 1.921

Feb. 2@, 1923. 1,445,796

L. W. PAXTON GAUGE FOR PUNCHING MACHINES Filed Sept. 14, 1921 Esheets-sheet 2 I Patented Etll,

'iiirtii Ltoiruitirritraiurartrou, or rrrrsnuaeu, rnunsrnveitra.

eater: roe rultonrn'e r/racrrrnnsz Application files :Be it known. that I EAI IOYD WILLIAM1PM;- Tom, a citizen of the United States oiiimer ica,and resident of Pittsburgh, the county; of Allegheny and State of PennsvL and moved with relation to the punches, means being provided For interrupting the movement oi. the carriage at predetermined intervals orspaces Whilethe punchesarebe wisp; operated to produce the holes. a

duce alracl; applicable to framei oti a pun clung; mach ne, novel 1 means helng i pr ovided in the nature of stops with relation [to which the tripping mechanism;operates for arresting the movemento'f the carnage iniuedf distance, in order that the Work may hepresented intproperl posltion wlthflre- 3 D Iiorined iii correct p i [f otherparts which are to receive rivets, bolts or the likeio'r itasteuihg parts of: "bridges othermetalstructurestogether;-

it is an ohjet of this invention to i ch e a gauge to he media connectionfwith teinplet; and is principally for use in puncl1- Work wl' ere a te1n11 letfi$not employed; the p ose oi? the stop or taltrle arresting mech- Ianism v being to provide means im-setting afinachine rapidly and accurately to vavoid the'iloss of time. a i v a i it ltis furthermore anohjectof the invenr ltionto produce a device cit this character fwhich will;permit the movement of the tahle 01 carriage andtojdeterniinethe said movement vvithintractiohs of an inclnithe ing; possible by the use of this invention to movement of the carriage (permitting it to move from onasixteenth of an inch to sev eral feet. 4 Q i a With the foregoing objects in vievv the stops 0r arrestingineans are applicable for Vania, have invented certain neiviand; useful invention relates to gauges for 1 which theWork issupported hv acarrianei evl1ich- Itis anobject 0i. this finvention to yprohenthe Work has been carrieda predetei spat tothe punches so that holes "may he 'ons ithrelation to v uchine,the latter of \vhichis hut convention- As the construction of punching mach nes which do not us'eia "term apart 'o i the present 1nventi0n, it

ineed notylt 1s thoughtuhe shown indetail.

i ingr plate multiples, hearn racks and other iii grinachinefl i a a i i i 1th the shame 1.0;, there 1se1n- I 105 F so set the mechanism as to determine'the fieptember 14, war; Serial; its. spatial havestreng'th to WlthStELIld shock imparted to ithy arrestingthe table or carriage after it has moved a great distance, or even though it moves t but slightly, and hence, different size stops are employed or provided to Withstand thekick of the carriage i proportionallyito the distance it travels.

In describing theinvention in detail, referencefvvill he had to the accompanying drawings forming partof this application ing, parts; in the, several views, and in Figure 1 illustrates mite in elevationof a punchingmachine with: the idevice ern-i ihodying theyliwention appl ed thereto;

Figure 2.,il1ust1rates pa :top plan view thereof ;2 i

Figure 3illustratesyan end View of "the table having. the r ackg 1 Figure 4: illustrates a perspective of the hottornof the rackg i '7 Figure 5 illustrates aperspectivevieiv of fragmentsoi one sidegof the rackgand Figures 65 ,7, 8 and 9 illustrate perspectivefv ews oi'ystopping blocks o ifdifi'erent dimensioned i v Inthese drawings gl Odenotes the frame ofa carriage, l-,a11d illfthe punchlng mawherein like characters denote correspond ally shown, since it is intendeditohbe ca h a pahle not punching}; sheets toimetal which prd are "moved with respectt ,it by the cz irrier.

Q The carriage/frame lO has theusualj teed rackwlQ, and carriage'supportssuch as 13 lover-which theearriageinovcs, and suitable gearing" lti-whlch" may {he turned infthe i the punch does not usual manner rlior causing the carriage to v A travel longitudinally of the table, and 15 are conventional types oi? .vvork clamps adapted; to engage the sheets or plates of -metal to be moved with respect to the punch- .of uniforn'i size and spaced from end to end of the raclg in'the present embodiment of the ilrventlon, and theseside racks constitute anchorages for stop blocks, which will be presently described.

Thereis a bolt or rivet which extends through the carriage preferably vertically, and its end extends into the space between --the side racks in order that the said bolt will engage a stop and arrest the carriage "when it has moved a predetermined distanceyand the bolt is movable vertically undei: gthe lntiuence of the arm which is mounted on a shaft 25, the said shaft being partially rotated by power applied to the arm or handle 26 which estendsfln the present showing, upwardly from the shaft 25. 25

fications, one of'the other, forthe purpose The stop blocks here illustrated are modiof increasing the range of adjustment; which may be afforded by their use. The block 27 has oppositely disposed teeth 28 and 29 which are intended to mesh with the teeth ofthe rack members for holding the block in different positions with respect to the length of the-rack. The block 27 may he inverted and by reason of the fact that the sides of the block are at different distances from the teeth, it will be observed that a wide range of "adjustment may be attained this expedient. v For instance. the surface 3t)fof-1the*hlock is'spaced from the teeth a less distance than the face 31, since the face 31 projects beyond the plane of the face 30. The face 32 of the block projects to a greater degree than theface portion 33 thereof.

Hence, if the block is inserted to present the face 32' to the bolt 23, the carriage will -inove"a--sligl 1t1y less distance than it would if the block were inverted and the bolt moved to engage the face Furthermore. this block is relatively light and is intended to be used when the carriage is arrested at short intervals, and the same-is true with respect to-the block 247 which has its faces differently spaced with. relation to the teeth.

The block '35 is relatively heavy and is intended to be employed when the carriage is to move, a long'distance prior to its being grooves, teeth on the inner suria arrested, for it is then a greater impact results from the engagement of the bolt and the said block. and the number of teeth is increased.

In the form shown in Fig. 8. the block ii?) has its faces at different distances with respect to the teeth". and as the purpose of this arrangement has been indicated. it is believed unnecessary to elaborate it.

In, the modification shown in liig. El, the block 36 has teeth of the general character of those heretofore described. but in this cmbodiment of the invention, the faces are recessed to different depthsgthe recess 37 being greater than the recess 38, and hence a. very fine adjustment could be attained by prosenting one or the other of the tacos to be engaged by the bolt and from this illnstra tion of the possibilities of adjustment, it will be understood that one skilled in the art could so construct the blocks as to get a most minute adjustment for controlling the movement of the carriage with respect to the punching machine. 7

I claim:

1. In a gauge for punching mxurhincs. a sectional bottom having grooves in its upper face, sides having tongues fitting in the of: the sides, blocks having teeth fitted between the said sides and en; ging the teeth thereof, and a carriage having a. bolt projecting between the sides and adapted to contact the blocks.

2, In a gauge for punching machines. a rack comprising a bottom and internally toothed sides supported in operative relation to a carriage, blocks having teeth adapted to engage the teeth of the sides and having sectional faces di'lfcrcntly spaced *ith respect to the teeth. and a member on the carriage adapted to engage the stops when the carriage is moved prcdctcrmincd distances.

3. In a gauge for punching machines. a rack comprising a bottom and internally toothed sides supported in operative relation to a carriage. blocks having teeth adapted to engage the teeth of the sides and having sectional faces difl'm-cntly spaced with respect to the teeth. a member on thc carriage adapted to engage the stops when the carriage is moved prcdctcrmincd dis tances. and means for moving the mcmbcr into and out of the range of the stops.

LLOYD VILTJAH PA \"ION. 

